[rescue] (Offtopic) X-Message-Flag fun for Outlook users
phil.stracchino at speakeasy.net
Thu Aug 3 11:21:48 CDT 2006
Peter Corlett wrote:
> On 2 Aug 2006, at 23:41, Jonathan C. Patschke wrote:
>> We're affected by Microsoft -every single day-. Your average mail
>> system receives approximately 15% - 30% more spam (both in terms of
>> messages and octet count) than it does actual email. A very, very
>> portion of that traffic is generated by zombified PCs running
> 100:115 - 100:130? I wish it were that low.
> Probably about 90% of the attempted mail deliveries to my MXer are
> worm traffic. The aggressive heuristics mean that most don't make it
> past MAIL FROM: and probably about 60% of what's left gets as far as
> DATA before also being declined.
I actually abandoned babcom.com for mail delivery purposes because the
spam problem had gotten so bad. It wasn't 15%-30% more spam than real
mail; it was orders of magnitude. I once observed a three-day period
over which I received in excess of 10,000 spam delivery attempts per
day, and less than 100 legitimate mail messages during the entire three
Babcom.com is now MX'd directly into a Spamcop honeypot address. For
safety, Spamcop drops mail actually addressed to a list of babcom.com
addresses that have ever actually existed before processing the
remaining spam, but even without that preprocessing, mail addressed to
babcom.com is a 99.9% pure stream of spam that's consistently averaging
3,000-4,000 messages per day. Adrian loves it.
I take some gratification from the thought that one of my domains is
probably significantly contributing to the effectiveness of Spamcop.
I still get some mail for babcom.com that ignores the MX records and is
sent directly to the domain. I reject it all, because it's ALL spam.
100%. About two years ago, I had *one message* come in that was
legitimate mail accidentally sent to the wrong domain. There has not
been a single message since then sent to a babcom.com user that actually
exists and was not sent from a known spam source.
Phil Stracchino Landline: 603-886-3518
phil.stracchino at speakeasy.net Mobile: 603-216-7037
Renaissance Man, Unix generalist, Perl hacker, Free Stater
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